Dental Restoration FailureNCT05180903
Clinical Performance of Polyethylene Fiber Reinforced Resin Composite Restorations (Wall Papering Technique) Versus Bulk Fill Resin Composite Restorations in Endodontically Treated Teeth Will be Evaluated Using Modified USPHS Criteria.
A study testing X-tra base & GrandioSO reinforced by Ribbond in people with Dental Restoration Failure, run by Cairo University at 1 site in Egypt.
Trial summary
The aim of this study will be to evaluate the clinical performance of polyethylene fiber reinforced resin composite restorations versus bulk fill resin composite restorations in endodontically treated teeth. Read more about this study
- Who is it for?
- Ages 18 to 55 yearsHealthy volunteers can take part
- Conditions the study is for
- Dental Restoration Failure
- What is being tested?
- X-tra base & GrandioSO reinforced by Ribbond
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 28 participants
- Where
- 1 siteEgypt
- Study dates
- 1 Apr 2022to 10 Sep 2023
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 55 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Participant:
- Patients ages 18 to 55 years.
- Patients with endodontically treated teeth.
- Patients with good general health.
- Patients with good recall availability.
- Teeth:
Show all 10Show fewer
- Successfully endotreated molar teeth.
- Endodontically treated teeth (ETT) with at least two remaining walls.
- ETT without apical or periapical pathosis.
- ETT with healthy peridontium.
Who cannot join
- Participant;
- Patients who are allergic to product ingredient.
- Patients who need indirect restorations.
- Patients with poor oral hygiene.
- Patients with history of bruxism and parafunctional habits.
- Teeth:
Show all 10Show fewer
- Teeth with noncarious cervical lesions.
- ETT with more than two remaining walls.
- Presence of apical or periapical pathosis.
- Teeth with advanced periodontal diseases. -
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Clinical Performance of Polyethylene Fiber Reinforced Resin Composite Restorations (Wall Papering Technique) Versus Bulk Fill Resin Composite Restorations in Endodontically Treated Teeth: A One Year Randomized Clinical Trial
The aim of this study will be to evaluate the clinical performance of polyethylene fiber reinforced resin composite restorations versus bulk fill resin composite restorations in endodontically treated teeth.
Read the detailed description
Statement of the problem:
Restoration of non-vital teeth is always challenging for dentists. Without placing the coronal restoration, root canal treatments are not considered complete. Appropriate treatment plan selection should be based on remaining tooth structure, cavity wall thickness, tooth position in the arch, and load applied to the tooth. Previously, endodontically treated teeth (ETT) were reconstructed automatically with post, core, and full crown. But this treatment plan had many risks like root perforation, sacrificing a considerable amount of sound tooth structure, and tooth fracture.Several techniques and materials have been developed for the restoration of endodontically treated teeth including complete cast coverage, composite resins and amalgam and indirect restorations covering cusps. Resin-based materials provide rigidity and increase the fracture resistance of non-vital teeth by rein-forcing unsupported tissues. Advanced adhesive systems with improved physical properties are more aesthetic and support remaining tooth structures better than amalgam. In order to reduce polymerization shrinkage stresses, flowable resins with low elastic modulus have been suggested as a stress-absorbing layer under composite restorations. On the other hand, the use of flowable resin does not increase fracture resistance, and this layer results in contraction stresses.
Rational:
In fact, the primary aims of "biomimetic dentistry" are to be as minimally invasive as possible, and to substitute the missing hard dental tissues with restorative materials closely resembling the natural tissues regarding their mechanical features and properties.
Leno weaved Ultra-high-molecular-weight polyethylene (LWUHMWPE) fibers are plasma treated fibers. LWUHMWPE fiber reinforcement Ribbond systems (Ribbond THM, Ribbond Inc, Seattle, WA, USA) have been introduced in the attempt to increase composite resin toughness, thus increasing both durability and damage tolerance. These bondable reinforcement fibers can be closely adapted to the residual tooth structure without requiring additional preparation. The high modulus of elasticity and low flexural modulus of polyethylene fiber have a modifying effect on the interfacial stresses developed along the cavity walls.
According to a systematic review published in 2021 that was done to evaluate various in vitro studies, it was confirmed that the effect of the Ultra-high-molecular weight polyethylene fibers is increasing the fracture resistance and making more favorable fractures in endodontically treated teeth. However, there is no enough clinical data regarding this point, so this proposal is introduced.
- Conditions
- Dental Restoration Failure
- Being tested
- X-tra base & GrandioSO reinforced by Ribbond
- Keywords
- Ribbond, Reinforced Composite, polyethylene Fibers
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
X-tra base & GrandioSO reinforced by RibbondOther
Also called Bulk Fill resin composite restorations (X-tra base & GrandioSO, Voco, Cuxhaven, Germany) reinforced by ultra high molecular weight polyethylene. (Ribbond THM, Ribbond Inc, Seattle, WA, USA)
The missing peripheral tooth structure will be built up via 2-mm wedge-shaped a universal hybrid resin composite, GrandioSO . Then the polyethylene fibers will be wetted with an unfilled resin first . After removing the excess resin, fibers will be covered with a very thin layer of flowable composite X-tra base . After that, fibers will be bonded immediately against the peripheral missing walls and cured for 20 seconds. Then a bulk-fill flowable resin composite lining X-tra base will be applied in approximately 4 mm thick in bulk increments as needed to fill the cavity 2 mm short of the occlusal cavosurface and each increment will be light cured for 20 s. The remaining occlusal part of the cavity will be restored with a universal hybrid resin composite, GrandioSO . The shade of the composite will be selected according to the teeth to be restored. All cavities will be restored with open-sandwich technique (Deliperi, et al. 2017).
| Study group | Role | What they receive |
|---|---|---|
| Bulk Fill resin composite restorations reinforced by ultra high molecular weight polyethylene. | Experimental | Bulk Fill resin composite restorations (X-tra base \& GrandioSO, Voco, Cuxhaven, Germany) reinforced by ultra high molecular weight polyethylene. (Ribbond THM, Ribbond Inc, Seattle, WA, USA) Receives: Other: X-tra base & GrandioSO reinforced by Ribbond |
| Bulk Fill resin composite restorations | Active comparator | Bulk Fill resin composite restorations (X-tra base \& GrandioSO, Voco, Cuxhaven, Germany) Receives: Other: X-tra base & GrandioSO reinforced by Ribbond |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in the clinical performance
Measured using modified USPHS criteria for clinical evaluation of restoration failure.
Measured: Change from the baseline at six months.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Jan 2022
- Study start1 Apr 2022
- Primary completion10 Jul 2023
- Study completion10 Sep 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (15)Papers the sponsor has linked to this study.
- Other trials for Dental Restoration FailureStudies of the same condition, open and under way.
- More trials run by Cairo UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 28 participants (actual)
Sponsor and investigators
- Lead sponsor
- Cairo University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ahmed Abdelsattar Mohamed Metwaly, Cairo University
- Investigators
- Amira Farid Elzoghbi, Professor, Study director, Cairo University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05180903
- Sponsor's protocol ID
- Ribbond Reinforced Composite
- Status last verified
- Sep 2023
- First submitted
- 3 Dec 2021
- Last updated
- 26 Sep 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Abdelaziz Kandil, S. A., M. R. Farid, et al. (2021).
Atlas A, Grandini S, Martignoni M. Evidence-based treatment planning for the restoration of endodontically treated single teeth: importance of coronal seal, post vs no post, and indirect vs direct restoration. Quintessence Int. 2019;50(10):772-781. doi: 10.3290/j.qi.a43235.
PubMed 31559397Ayna B, Celenk S, Atakul F, Uysal E. Three-year clinical evaluation of endodontically treated anterior teeth restored with a polyethylene fibre-reinforced composite. Aust Dent J. 2009 Jun;54(2):136-40. doi: 10.1111/j.1834-7819.2009.01106.x.
PubMed 19473155Durao MA, Andrade AKM, Santos MDCMDS, Montes MAJR, Monteiro GQM. Clinical Performance of Bulk-Fill Resin Composite Restorations Using the United States Public Health Service and Federation Dentaire Internationale Criteria: A 12-Month Randomized Clinical Trial. Eur J Dent. 2021 May;15(2):179-192. doi: 10.1055/s-0040-1718639. Epub 2020 Nov 26.
PubMed 33242913Deliperi S, Alleman D, Rudo D. Stress-reduced Direct Composites for the Restoration of Structurally Compromised Teeth: Fiber Design According to the "Wallpapering" Technique. Oper Dent. 2017 May/Jun;42(3):233-243. doi: 10.2341/15-289-T.
PubMed 28467261Frater M, Lassila L, Braunitzer G, Vallittu PK, Garoushi S. Fracture resistance and marginal gap formation of post-core restorations: influence of different fiber-reinforced composites. Clin Oral Investig. 2020 Jan;24(1):265-276. doi: 10.1007/s00784-019-02902-3. Epub 2019 May 16.
PubMed 31098711Garoushi S, Gargoum A, Vallittu PK, Lassila L. Short fiber-reinforced composite restorations: A review of the current literature. J Investig Clin Dent. 2018 Aug;9(3):e12330. doi: 10.1111/jicd.12330. Epub 2018 Feb 25.
PubMed 29479830Karaman E, Keskin B, Inan U. Three-year clinical evaluation of class II posterior composite restorations placed with different techniques and flowable composite linings in endodontically treated teeth. Clin Oral Investig. 2017 Mar;21(2):709-716. doi: 10.1007/s00784-016-1940-y. Epub 2016 Aug 19.
PubMed 27538739Kashi, A. M. A., S. Ghanbaran, et al. (2020).
Lempel E, Lovasz BV, Bihari E, Krajczar K, Jeges S, Toth A, Szalma J. Long-term clinical evaluation of direct resin composite restorations in vital vs. endodontically treated posterior teeth - Retrospective study up to 13 years. Dent Mater. 2019 Sep;35(9):1308-1318. doi: 10.1016/j.dental.2019.06.002. Epub 2019 Jul 2.
PubMed 31278018Ozsevik AS, Yildirim C, Aydin U, Culha E, Surmelioglu D. Effect of fibre-reinforced composite on the fracture resistance of endodontically treated teeth. Aust Endod J. 2016 Aug;42(2):82-7. doi: 10.1111/aej.12136. Epub 2015 Nov 27.
PubMed 26611674Shah EH, Shetty P, Aggarwal S, Sawant S, Shinde R, Bhol R. Effect of fibre-reinforced composite as a post-obturation restorative material on fracture resistance of endodontically treated teeth: A systematic review. Saudi Dent J. 2021 Nov;33(7):363-369. doi: 10.1016/j.sdentj.2021.07.006. Epub 2021 Jul 14.
PubMed 34803275Valizadeh S, Ranjbar Omrani L, Deliperi S, Sadeghi Mahounak F. Restoration of a Nonvital Tooth with Fiber Reinforce Composite (Wallpapering Technique). Case Rep Dent. 2020 Jun 5;2020:9619787. doi: 10.1155/2020/9619787. eCollection 2020.
PubMed 32566326Wang X, Shu X, Zhang Y, Yang B, Jian Y, Zhao K. Evaluation of fiber posts vs metal posts for restoring severely damaged endodontically treated teeth: a systematic review and meta-analysis. Quintessence Int. 2019;50(1):8-20. doi: 10.3290/j.qi.a41499.
PubMed 30600326Metwaly AA, Elzoghby AF, Abd ElAziz RH. Clinical performance of polyethylenefiber reinforced resin composite restorations in endodontically treated teeth: (a randomized controlled clinical trial). BMC Oral Health. 2024 Oct 24;24(1):1285. doi: 10.1186/s12903-024-05009-8.
PubMed 39448991
Study at a glance
From the registry record, last updated by the sponsor on 26 Sep 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Clinical Performance of Polyethylene Fiber Reinforced Resin Composite Restorations (Wall Papering Technique) Versus Bulk Fill Resin Composite Restorations in Endodontically Treated Teeth: A One Year Randomized Clinical Trial
- ClinicalTrials.gov ID
- NCT05180903
- Acronym / sponsor ID
- Ribbond Reinforced Composite
- Conditions
- Dental Restoration Failure
- Keywords
- Ribbond, Reinforced Composite, polyethylene Fibers
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 28 participants (actual)
- Lead sponsor
- Cairo UniversityUniversity, hospital or other
- Study start
- 1 Apr 2022 (actual)
- Primary completion
- 10 Jul 2023 (actual)
- Study completion
- 10 Sep 2023 (actual)
- First posted
- 6 Jan 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study will be to evaluate the clinical performance of polyethylene fiber reinforced resin composite restorations versus bulk fill resin composite restorations in endodontically treated teeth.
Detailed description
Statement of the problem:
Restoration of non-vital teeth is always challenging for dentists. Without placing the coronal restoration, root canal treatments are not considered complete. Appropriate treatment plan selection should be based on remaining tooth structure, cavity wall thickness, tooth position in the arch, and load applied to the tooth. Previously, endodontically treated teeth (ETT) were reconstructed automatically with post, core, and full crown. But this treatment plan had many risks like root perforation, sacrificing a considerable amount of sound tooth structure, and tooth fracture.Several techniques and materials have been developed for the restoration of endodontically treated teeth including complete cast coverage, composite resins and amalgam and indirect restorations covering cusps. Resin-based materials provide rigidity and increase the fracture resistance of non-vital teeth by rein-forcing unsupported tissues. Advanced adhesive systems with improved physical properties are more aesthetic and support remaining tooth structures better than amalgam. In order to reduce polymerization shrinkage stresses, flowable resins with low elastic modulus have been suggested as a stress-absorbing layer under composite restorations. On the other hand, the use of flowable resin does not increase fracture resistance, and this layer results in contraction stresses.
Rational:
In fact, the primary aims of "biomimetic dentistry" are to be as minimally invasive as possible, and to substitute the missing hard dental tissues with restorative materials closely resembling the natural tissues regarding their mechanical features and properties.
Leno weaved Ultra-high-molecular-weight polyethylene (LWUHMWPE) fibers are plasma treated fibers. LWUHMWPE fiber reinforcement Ribbond systems (Ribbond THM, Ribbond Inc, Seattle, WA, USA) have been introduced in the attempt to increase composite resin toughness, thus increasing both durability and damage tolerance. These bondable reinforcement fibers can be closely adapted to the residual tooth structure without requiring additional preparation. The high modulus of elasticity and low flexural modulus of polyethylene fiber have a modifying effect on the interfacial stresses developed along the cavity walls.
According to a systematic review published in 2021 that was done to evaluate various in vitro studies, it was confirmed that the effect of the Ultra-high-molecular weight polyethylene fibers is increasing the fracture resistance and making more favorable fractures in endodontically treated teeth. However, there is no enough clinical data regarding this point, so this proposal is introduced.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Bulk Fill resin composite restorations reinforced by ultra high molecular weight polyethylene. | Experimental | Other: X-tra base & GrandioSO reinforced by RibbondBulk Fill resin composite restorations (X-tra base \& GrandioSO, Voco, Cuxhaven, Germany) reinforced by ultra high molecular weight polyethylene. (Ribbond THM, Ribbond Inc, Seattle, WA, USA) |
| Bulk Fill resin composite restorations | Active comparator | Other: X-tra base & GrandioSO reinforced by RibbondBulk Fill resin composite restorations (X-tra base \& GrandioSO, Voco, Cuxhaven, Germany) |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (10 listed)
- Patients ages 18 to 55 years.
- Patients with endodontically treated teeth.
- Patients with good general health.
- Patients with good recall availability.
- Successfully endotreated molar teeth.
Key exclusion criteria (10 listed)
- Participant;
- Patients who are allergic to product ingredient.
- Patients who need indirect restorations.
- Patients with poor oral hygiene.
- Patients with history of bruxism and parafunctional habits.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| X-tra base & GrandioSO reinforced by RibbondAlso: Bulk Fill resin composite restorations (X-tra base & GrandioSO, Voco, Cuxhaven, Germany) reinforced by ultra high molecular weight polyethylene. (Ribbond THM, Ribbond Inc, Seattle, WA, USA)The missing peripheral tooth structure will be built up via 2-mm wedge-shaped a universal hybrid resin composite, GrandioSO . Then the polyethylene fibers will be wetted with an unfilled resin first . After removing the excess resin, fibers will be covered with a very thin layer of flowable composite X-tra base . After that, fibers will be bonded immediately against the peripheral missing walls and cured for 20 seconds. Then a bulk-fill flowable resin composite lining X-tra base will be applied in approximately 4 mm thick in bulk increments as needed to fill the cavity 2 mm short of the occlusal cavosurface and each increment will be light cured for 20 s. The remaining occlusal part of the cavity will be restored with a universal hybrid resin composite, GrandioSO . The shade of the composite will be selected according to the teeth to be restored. All cavities will be restored with open-sandwich technique (Deliperi, et al. 2017). | Other | Bulk Fill resin composite restorations, Bulk Fill resin composite restorations reinforced by ultra high molecular weight polyethylene. |
Primary outcome
Change in the clinical performance
Time frame: Change from the baseline at six months.
Measured using modified USPHS criteria for clinical evaluation of restoration failure.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Sep 2023.
- BackgroundAbdelaziz Kandil, S. A., M. R. Farid, et al. (2021).
- Background: PubMed 31559397Atlas A, Grandini S, Martignoni M. Evidence-based treatment planning for the restoration of endodontically treated single teeth: importance of coronal seal, post vs no post, and indirect vs direct restoration. Quintessence Int. 2019;50(10):772-781. doi: 10.3290/j.qi.a43235.
- Background: PubMed 19473155Ayna B, Celenk S, Atakul F, Uysal E. Three-year clinical evaluation of endodontically treated anterior teeth restored with a polyethylene fibre-reinforced composite. Aust Dent J. 2009 Jun;54(2):136-40. doi: 10.1111/j.1834-7819.2009.01106.x.
- Background: PubMed 33242913Durao MA, Andrade AKM, Santos MDCMDS, Montes MAJR, Monteiro GQM. Clinical Performance of Bulk-Fill Resin Composite Restorations Using the United States Public Health Service and Federation Dentaire Internationale Criteria: A 12-Month Randomized Clinical Trial. Eur J Dent. 2021 May;15(2):179-192. doi: 10.1055/s-0040-1718639. Epub 2020 Nov 26.
- Background: PubMed 28467261Deliperi S, Alleman D, Rudo D. Stress-reduced Direct Composites for the Restoration of Structurally Compromised Teeth: Fiber Design According to the "Wallpapering" Technique. Oper Dent. 2017 May/Jun;42(3):233-243. doi: 10.2341/15-289-T.
- Background: PubMed 31098711Frater M, Lassila L, Braunitzer G, Vallittu PK, Garoushi S. Fracture resistance and marginal gap formation of post-core restorations: influence of different fiber-reinforced composites. Clin Oral Investig. 2020 Jan;24(1):265-276. doi: 10.1007/s00784-019-02902-3. Epub 2019 May 16.
- Background: PubMed 29479830Garoushi S, Gargoum A, Vallittu PK, Lassila L. Short fiber-reinforced composite restorations: A review of the current literature. J Investig Clin Dent. 2018 Aug;9(3):e12330. doi: 10.1111/jicd.12330. Epub 2018 Feb 25.
- Background: PubMed 27538739Karaman E, Keskin B, Inan U. Three-year clinical evaluation of class II posterior composite restorations placed with different techniques and flowable composite linings in endodontically treated teeth. Clin Oral Investig. 2017 Mar;21(2):709-716. doi: 10.1007/s00784-016-1940-y. Epub 2016 Aug 19.
- BackgroundKashi, A. M. A., S. Ghanbaran, et al. (2020).
- Background: PubMed 31278018Lempel E, Lovasz BV, Bihari E, Krajczar K, Jeges S, Toth A, Szalma J. Long-term clinical evaluation of direct resin composite restorations in vital vs. endodontically treated posterior teeth - Retrospective study up to 13 years. Dent Mater. 2019 Sep;35(9):1308-1318. doi: 10.1016/j.dental.2019.06.002. Epub 2019 Jul 2.
- Background: PubMed 26611674Ozsevik AS, Yildirim C, Aydin U, Culha E, Surmelioglu D. Effect of fibre-reinforced composite on the fracture resistance of endodontically treated teeth. Aust Endod J. 2016 Aug;42(2):82-7. doi: 10.1111/aej.12136. Epub 2015 Nov 27.
- Background: PubMed 34803275Shah EH, Shetty P, Aggarwal S, Sawant S, Shinde R, Bhol R. Effect of fibre-reinforced composite as a post-obturation restorative material on fracture resistance of endodontically treated teeth: A systematic review. Saudi Dent J. 2021 Nov;33(7):363-369. doi: 10.1016/j.sdentj.2021.07.006. Epub 2021 Jul 14.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Amira Farid Elzoghbi, Professor study director
Cairo University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing X-tra base & GrandioSO reinforced by Ribbond in people with Dental Restoration Failure, run by Cairo University at 1 site in Egypt.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 10 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 26 Sep 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in the clinical performance (time frame: Change from the baseline at six months.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05180903, which also lists 15 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Sep 2023.